Valve for inflation.



Patented Oct. l, |90I.

R. C. HILTON. VALVE FOB INFLATlON. Application ma Feb. 12, 1601.)

(No Model.)

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e. UNITED STATES PATENT OFFICE.

ROLAND C; HILTON, OF NEIV BEDFORD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JAMES M. WILLIS, JR., OF SAME PLACE.

VALVE FOR INFLATION.

SPECIFICATION forming* part of Letters Patent NO. 683,855, dated. October 1, 1901.

Y Application filed February 12, 1901. Serial No. A17,004. (No model.)

To all whom, it may concern:

Be it known that I, ROLAND C. HILTON, aV citiz'en of the United States, residing at New Bedford, in the county of vBristol and State of Massachusetts, have invented certain new and useful Improvements in Valves for Inflation, of which the following is a specifica; tion` reference being had therein to the accompanying drawings.

This invention has for its objects the production of simple, reliable, and inexpensive devices to facilitate the iniiation of articles, particularly pneumatic tires, and the prevention of the accidental removal of the head of the device, although'said head is well adapted to be revolved within a union secured to the body of the device, as shown in the accompanying drawings, in which-- Figure 1 represents, on an enlarged scale, a longitudinal central section of the parts of the device with the central hollow plug lowered to the bottom of its course and away from the bottom of the head of the valvestem, as it is during the process of inflation. Fig. 2 is also a longitudinal section of the device with the upper end of the valve-seat carrier in elevation to show its square head in loose engagement with the four walls of a quadrangular chamber within the plug and the valve also in elevation to show portions cut away from its sides for the passage of air. Fig. 3 is a transverse section on line e: fr of Fig. l. Fig. 4E is a perspective view of the Valve removed from the casing.

In said drawings the casing or body H is generally secured within a short rubber tube attached to a hollow rubber tire and is generally provided with annular grooves h in its periphery to increase the adhesion of said short tube thereto, Said body H is outwardly cylindrical, and its interior is also cylindrical;

`but the upper portion of said interior is of greater diameter,having two collars or shelves formed in its walls. Within the upper portion is placed the valve-seat carrier 6, the eX- terior of which is cylindrical, except its upper end 5, which is quadrangular. Its mid dle portion is provided with a iange 7 to rest upon the upper end of the casing H, with a soft washer 9 between them to render that jOint air-tight.

Upon the top of the flange 7 of the valve seat carrier 6 is mounted the head A, which has around its lower end a iiange c, by which it is connected to the body H by means of a union B, 'the inner upper collar of which loosely rests upon the flange a, while its screwtapped lower end is in engagement with the 4the body H, the top of the flange 7 bearing against the under side of the flange b, formed in the interior of the union B.

Within the rotatory head is placed a hollow plug E, having a right-hand screw-thread on its periphery and a quadrangular chamber within to receive therein the quadrangular upper end 5 of the valve-seat carrier 6. The top end of the plug E terminates in a thin tubular portion e, which is attened laterally into an elliptical form after the head f2 of the valve-stem f has been passed through, and engaging under said head lifts it to lock the valve in a closed position. The valvestem passes loosely through the valve-seat carrier, so as to have an air-passage between it and said carrier, and carries on its lower end the valve F. The lower end of the valvestem is of slightlylarger diameter and conical to cause it to center itself within the lower end of the valve-seat carrier.

The valve-seat consists of a soft Washer r2, the inner portion' of which is supported by a flange 8, formed on the lower end of the neck of said carrier 6, and its outer portion is supported on a shoulder 10, formed on the inner face of the casing.

The upper end of the valve-stem f has the head f2, by which the valve is pulled up against its seat when the head A is rotated toward the right side, which lifts the plug E to the position shown in Fig. 2.

To prevent the valve F from being blown too far within the chamber G during the proc- IOO ess of in dation, and thereby prevent the head f2 from Closing the top of the passage in the tubular portion e, surrounding the stem f, the inner surface of the casing l-I has a shoulder h2 to arrest the valve F, and said valve has its sides out away at F2 for the passage of air, even if it is temporarily seated upon the shoulder h2. 1

Having now fully described my invention, I claiml. In a valve for iniiation, the combination of a ohambered body internally Wider in its upper end having shoulders on the inner face of its wall, a tubular valve-seat carrier partly Within the upper end of said body and having a quadrangular head, a screw-plug having aquadrangular chamber to receive said head, a valve, and its stem passing through said plug, an internally-screw-tapped head engaging said plug, and a Linien joining said head to the ehambered body substantially as described.

2. The combination of a ehainbered body internally wider in its upper end, a tubular valve-seat carrier having a quadrangular head, a screw-plug having a quadrangular chamber to receive said plug, an internallysereW-tapped head engaging said plu g,a valve and its stern, and a union Connecting the ehambered body to its head substantially as described.

In testimony whereof I aiix my signature in presence of two Witnesses. l

' ROLAND C. HILTON.

IVitnesses: l

JAMES M. VILLIS, J r., GEORGE W. STETsoN. 

